The Great Chicago Fire
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rd 3 Grade Social Sciences ILS—16A, 16C, 16D, 17A The Great Chicago Fire How did the Great Chicago Fire of October 1871 change the way people designed and constructed buildings in the city? Vocabulary This lesson assumes that students already know the basic facts about the Chicago Fire. The lesson is designed to help students think about what happened after the load-bearing method a method of fire died out and Chicagoans started to rebuild their city. construction where bricks that form the walls support the structure Theme skeleton frame system a method This lesson helps students investigate how the fire resulted in a change of the of construction where a steel frame construction methods and materials of buildings. By reading first-hand accounts, acts like the building’s skeleton to support the weight of the structure, using historic photographs, and constructing models, students will see how the and bricks or other materials form the people of Chicago rebuilt their city. building’s skin or outer covering story floors or levels of a building Student Objectives • write from the point of view of a person seen in photographs taken shortly after conflagration a large destructive fire the Great Chicago Fire • point of view trying to imagine distinguish between fact and opinion Grade Social Sciences how another person might see or rd • differentiate between a primary source and a secondary source 3 understand something • discover and discuss the limitations and potential of load-bearing and skeleton frame construction methods primary source actual records that 31 • respond to questions and make inferences about the growth of the American have survived from the past, such as letters, photographs, census data, skyscraper and its connection to inventions from the industrial era oral histories, and maps Activities secondary source memories of • observe, analyze, and interpret two well-known historic Chicago photographs the past created by people recalling the events some time after they • build models of pre-fire and post-fire buildings using the two different happened; secondary sources use construction methods primary sources to create a story • interpret a graph to understand the change (and reasons for the change) in building through writing, film, lectures, The Great Chicago Fire The heights after the fire or exhibits; projects completed by students are examples of secondary sources Type • indoor, desktop activities fact something that actually • optional: field trips to important Chicago Fire sites happened or existed opinion something that you think Timeframe is true, although not everyone may five class sessions of 40 minutes each agree with you Materials • approximately 20 wooden blocks, 20 small boxes, or 20 sugar cubes (per small student group) • two bags of stale mini-marshmallows and several boxes of toothpicks; ® or a set of Tinker Toys • roll of aluminum foil • Handout A - K-W-H-L chart • Handout B - photograph of the Water Tower from post-fire Chicago Schoolyards to Skylines © 2002 Chicago Architecture Foundation Materials (continued) • Handout C - map showing path of the Great Chicago Fire • Handout D - comparing the load-bearing method with a skeleton frame system • Handout E - questions and chart showing growth of the American skyscraper • Handout F - photograph of city re-building after the fire Teacher Prep • photocopy Handouts A and E (one per student) • photocopy or scan Handouts B, C, D, and F for display or projection • prepare the marshmallows by allowing them to sit out on a tray for a day Interdisciplinary (stale marshmallows make sturdier building materials, and students are less likely to eat them) Connections Health / Safety Tie this lesson in with Fire Safety Week at your school. Background Information for Teacher Language Arts Ask students to write a letter Building construction methods: Chicago Pre-Fire vs. Chicago Post-Fire to Mrs. O’Leary and her family In Chicago before 1871, most residential and smaller commercial buildings were The Great Chicago Fire The describing present-day Chicago. constructed from wood. Sidewalks throughout the city also were made from wood. Include drawings. Those combustible materials combined with the hot dry summer led, inevitably, to the Chicago Fire that began on October 8, 1871. Larger commercial buildings constructed before the Chicago Fire were built using a type of construction called the load-bearing method. When one brick is stacked on top of another, the bricks on the bottom support and carry the weight of the bricks on the top. But this method severely limited how tall the buildings could 32 be designed and built. As the building reached higher, the walls at the bottom had to be made thicker to support all the weight of the building. As the walls at the 3 rd bottom were made thicker, there was less space between the walls for usable rooms. Grade Social Sciences A further problem arose because floors and ceilings were constructed of wood: if the building caught fire, the interior would burn quickly and lead to the collapse of bricks on the exterior. After the Chicago Fire, the City passed laws that prevented most public buildings from being constructed out of wood. The City decreed that architects needed to design “fireproof” buildings. Although brick and stone were fireproof, these materials limited the heights of buildings. Cast iron, which had been used in construction since 1850, allowed greater flexibility in height and building design. But cast iron melted quite easily in a fire. By the mid 1880s, a stronger material called steel had been perfected. Steel dramatically increased how high buildings could be built. Steel was stronger, lighter, and more resistant to melting than any other building material. Steel enabled architects to overcome the height limitation of the load-bearing construction method. Rather than stacking brick upon brick, the new method of construction used steel to create a frame or skeleton. This method of construction is known as the skeleton frame system. Walls at the base of the building no longer needed to get thicker in order to support the weight of the building because the Schoolyards to Skylines © 2002 Chicago Architecture Foundation steel frame or skeleton was now doing the work. Bricks and other masonry were still used in this new method of construction, only now they were solely used as the skin or outer covering of the building or as ornamentation: they did not help to support the building. (This method of construction is similar to a tower that is made of toothpicks held together with mini-marshmallows and then covered with aluminum foil.) Chicago claims the very first skyscraper, the 10-story Home Insurance Building, designed by William Le Baron Jenney and built in 1885 and demolished in 1931. Skyscrapers built today still use the skeleton frame system. Resources Children of the Fire, Harriette Gillem Robinet. New York: Athenaeum, 1991. This historical fiction book is about an African-American girl The effect of the load-bearing method and later change to skeleton frame system named Hallelujah who lived at South State Street and 12th Street. The story, can be seen at the Monadnock Building, 53 West Jackson Boulevard, Chicago, told from her perspective, tells of the which is the tallest masonry-supported structure in the world. At the north end challenges she and her family faced (1891) of the building, the load-bearing exterior walls are 6-feet thick, and the as they survived the Great Chicago glass window panes are deeply recessed. In contrast, the walls at south section of Fire. Although the book is written at th the building are thinner and the glass window panes are not recessed. The south approximately a 5 grade level, you might choose to read portions of it section of the building was constructed two years later with a skeleton frame. aloud to your class. For information about terra cotta, which is another important fireproof building material “Did the Cow Do It? A New Look Grade Social Sciences at the Great Chicago Fire” in in Chicago history, see the Fine Arts lesson for Third Grade. rd Illinois Historical Journal, Spring, 3 1997, Richard F. Bales. For information about how buildings stand up, see the Science lesson for Third Grade. The Great Chicago Fire: In 33 Eyewitness Accounts and 70 For information about the first skyscraper (the 10-story Home Insurance Building), see Contemporary Photographs the Language Arts lesson for Third Grade. and Illustrations, David Lowe, ed. New York: Dover Publications, 1979. Although this book is aimed at adults, the amazing pictures will capture the Activity Procedures attention of your students. The Great Fire, Jim Murphy. DAY ONE and DAY TWO New York: Scholastic Inc., 1995. Great Chicago Fire The This student-friendly book is a Give each student a copy of the K-W-H-L chart in Handout A and fill in the wonderful resource for teaching the 1 Chicago Fire. Maps, photographs, blanks together as a class. drawings, and portions of a diary by Claire Innes, a young girl who - What do they Know about buildings built before and after the Great Chicago survived the fire, make this book a Fire of October 1871? solid teaching tool. A recording of - What do they Want to know about these buildings? the book is also available. - How can they find out more information? - What have they Learned? (As a follow-up to the lesson.) Read the following quotation to your class as you display the photograph 2 of the Water Tower from Handout B that was taken a few days after the fire near the corner of North Michigan Avenue and Chicago Avenue. Discuss which of his statements are facts and which statements are opinions. Explain the differences between primary sources and secondary sources to your students.